import 'package:flutter_test/flutter_test.dart';
import 'package:zenxercise/src/history/session_repository.dart';
import 'package:zenxercise/src/modes/mode.dart';
import 'package:zenxercise/src/plans/models/plan.dart';
import 'package:zenxercise/src/plans/plan_repository.dart';
import 'package:zenxercise/src/player/views/player_view.dart';

import '../support/test_app.dart';
import '../support/test_database.dart';

void main() {
  late PlanRepository plans;
  late SessionRepository sessions;
  late FakePlayerEffects effects;

  setUp(() {
    final db = testDatabase();
    addTearDown(db.close);
    plans = PlanRepository(db);
    sessions = SessionRepository(db);
    effects = FakePlayerEffects();
  });

  Future<void> startPlan(WidgetTester tester, Mode mode, List<PlanItem> items) async {
    final plan = await plans.create(mode, 'Routine');
    await plans.save(plan.copyWith(items: items));
    usePhoneScreen(tester);
    await pumpApp(tester, plans: plans, sessions: sessions, effects: effects, prefs: {'mode': mode.name});
    await tester.tap(find.byTooltip('Start'));
    await tester.pump();
    await tester.pump();
  }

  /// Drift's streams need real time to deliver, outside the test's fake clock.
  Future<List<Session>> sessionsOf(WidgetTester tester, Mode mode) async =>
      (await tester.runAsync(() => sessions.watchSessions(mode).first))!;

  /// The Player's ticker never lets frames settle, so it is pumped for a fixed time.
  Future<void> settle(WidgetTester tester) async {
    for (var i = 0; i < 8; i++) {
      await tester.pump(const Duration(milliseconds: 100));
    }
  }

  Future<void> wait(WidgetTester tester, int seconds) async {
    for (var i = 0; i < seconds * 5; i++) {
      await tester.pump(const Duration(milliseconds: 200));
    }
  }

  testWidgets('a Stretching Session counts down, chimes, keeps the screen on and ends on its summary', (tester) async {
    await startPlan(tester, Mode.stretching, const [
      StretchingStep(exerciseId: 'Calf_Stretch', holdSeconds: 10, bothSides: false, rounds: 1),
    ]);

    expect(find.text('Get ready'), findsOneWidget);
    expect(effects.screenOn, isTrue);

    // After the get-ready and the 0.7 s crossfade into the hold.
    await wait(tester, 5);
    await settle(tester);
    expect(find.text('Calf Stretch'), findsOneWidget);
    expect(find.text('Get ready'), findsNothing);

    await wait(tester, 10);
    await settle(tester);

    expect(find.text('Session complete'), findsOneWidget);
    expect(effects.chimes, [Mode.stretching, Mode.stretching]);
    expect(effects.screenOn, isFalse);
    expect((await sessionsOf(tester, Mode.stretching)).single.complete, isTrue);
  });

  testWidgets('a Workout set is confirmed with its logged reps, then rested and repeated', (tester) async {
    await startPlan(tester, Mode.workout, const [
      WorkoutStep(exerciseId: 'Barbell_Squat', sets: 2, target: WorkoutTarget.reps(10), weightKg: 60),
    ]);

    expect(find.text('Set 1 of 2'), findsOneWidget);
    expect(find.text('10 reps · 60 kg'), findsOneWidget);

    await tester.tap(find.text('Set done'));
    await settle(tester);
    await tester.tap(find.byTooltip('Reps −'));
    await tester.pump();
    await tester.tap(find.text('Save set'));
    await settle(tester);

    expect(find.text('Rest'), findsOneWidget);
    await wait(tester, 3);
    expect(find.text('0:03'), findsOneWidget);

    await tester.tap(find.text('Start next set'));
    await settle(tester);
    await tester.tap(find.text('Set done'));
    await settle(tester);
    await tester.tap(find.text('Save set'));
    await settle(tester);

    expect(find.text('Session complete'), findsOneWidget);
    expect(find.text('Set 1 · 9 reps · 60 kg'), findsOneWidget);
    expect(find.text('Set 2 · 10 reps · 60 kg'), findsOneWidget);
  });

  testWidgets('ending early after a set saves an unfinished Session', (tester) async {
    await startPlan(tester, Mode.workout, const [
      WorkoutStep(exerciseId: 'Barbell_Squat', sets: 3, target: WorkoutTarget.reps(10)),
    ]);
    await tester.tap(find.text('Set done'));
    await settle(tester);
    await tester.tap(find.text('Save set'));
    await settle(tester);

    await tester.tap(find.byTooltip('End session'));
    await settle(tester);
    await tester.tap(find.text('End session').last);
    await settle(tester);

    expect(find.text('Ended early'), findsOneWidget);
    expect((await sessionsOf(tester, Mode.workout)).single.complete, isFalse);
  });

  testWidgets('skipping through everything leaves no Session behind', (tester) async {
    await startPlan(tester, Mode.workout, const [
      WorkoutStep(exerciseId: 'Barbell_Squat', sets: 1, target: WorkoutTarget.reps(10)),
    ]);

    await tester.tap(find.byTooltip('Skip'));
    await settle(tester);

    expect(find.byType(PlayerView), findsNothing);
    expect(await sessionsOf(tester, Mode.workout), isEmpty);
  });

  testWidgets('ending before anything is done leaves no Session behind', (tester) async {
    await startPlan(tester, Mode.workout, const [
      WorkoutStep(exerciseId: 'Barbell_Squat', sets: 3, target: WorkoutTarget.reps(10)),
    ]);

    await tester.tap(find.byTooltip('End session'));
    await settle(tester);
    await tester.tap(find.text('End session').last);
    await settle(tester);

    expect(find.byType(PlayerView), findsNothing);
    expect(await sessionsOf(tester, Mode.workout), isEmpty);
  });
}